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A representative microphotograph showing co-localization of microglia (CX3CR1GFP/+, green) and Ki67 (red) in the juvenile DG after IR, indicating proliferating microglia (A) In juvenile brains, microglial proliferation was increased 6 h and 1 d after IR (B) No Ki67-positive microglia could be detected in the DG of adult brains.
